The metal bar has a mass of 26.7 kg and a volume of 3 dm3. What metal is it made of?

To understand what metal a bar is made of, you need to find the density of this metal.
Density can be found by dividing the mass of a bar by its volume. It is measured in kg / m3, so we convert the volume from dm3 to m3.
The resulting density is 8900 kg / m3. According to the density table, we find that it is copper.
Answer: made of copper.